test.conf

user  nginx;
worker_processes  auto;

load_module modules/ngx_stream_js_module.so;

error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http { }

# DNS Stream Services
stream {

  # DNS logging
  log_format  dns   '$remote_addr [$time_local] $protocol $status $bytes_sent $bytes_received "$dns_qname" "$upstream_addr"';

  access_log /var/log/nginx/dns-access.log dns;

  # Import the NJS module
  js_import /etc/nginx/njs.d/dns/test.js;

  # The $dns_qname variable can be populated by preread calls, and can be used for DNS routing
  js_set $dns_qname test.get_qname;

  # test server - responds to dns queries
  server {
    listen 5553;
    listen 5553 udp;
    js_var $test_result;
    js_preread test.test_dns_encoder;
    return $test_result;
  }

  # load balance to test server and parse responses
  server {
    listen 5554;
    listen 5554 udp;
    proxy_responses 1;
    js_filter test.test_dns_decoder;
    proxy_pass 127.0.0.1:5553;
  }


}